Dental Dam
A dental dam can cut STI transmission risk during oral sex on a vulva or anus, yet many people have never heard of one.
Dental Dam: A dental dam is a thin, flexible sheet, usually latex or polyurethane, placed over the vulva or anus during oral sex to create a barrier that reduces the risk of passing sexually transmitted infections.
Also known as: oral dam.
A dental dam works as a simple barrier between one person's mouth and another person's genitals or anus. You place the sheet flat over the area before any oral contact begins, and it stays in place throughout. It reduces direct skin to skin and fluid to fluid contact in the covered area, which is where many STIs can pass between partners. Keep in mind that infections spread through skin contact outside the covered area, such as herpes or HPV, may still be transmitted. Think of it as the oral sex equivalent of a condom, just in a different shape.
Dental dams are most commonly made from latex, though polyurethane versions are available if either partner has a latex allergy. You can add a small amount of water based or silicone based lube to the receiving partner's side for extra comfort. Never use oil based products with latex dams because oil breaks down the material and reduces protection. Use a fresh dam for each new act and never flip it over or reuse it, since that defeats the purpose of the barrier entirely.
Types of Dental Dam
Dental dams come in a small number of forms, so it is easy to find one that works for you.
- Latex dental dam: The most widely available type, made from thin latex, offering reliable barrier protection for most people.
- Polyurethane dental dam: A latex free option suitable for anyone with a latex sensitivity or allergy.
- Flavoured dental dam: Comes with a light flavour on the mouth side, which some people find makes the experience more enjoyable.
- DIY cut condom dam: A regular condom can be cut open and unrolled to create a makeshift barrier sheet if a dedicated dam is not available.
Curious to try? Browse our beginner friendly condoms and take your time choosing. Every HotCherry order ships discreetly.
Key things to know
- Dental dams reduce the risk of STI transmission during oral sex on a vulva or anus, which makes them a practical safer sex tool for many couples.
- Always check the expiry date before use, because an expired dam may have weakened material that is less effective as a barrier.
- Water based or silicone based lube on the receiving side improves comfort and helps the dam stay in place, making the experience better for both partners.
- Never reuse or flip a dental dam over, since doing so transfers anything the barrier was designed to block and removes its protective benefit.
- Polyurethane dams are a reliable latex free alternative, so a latex allergy does not have to be a barrier to using one.
Shop Condoms
FAQ
Where do I get dental dams?
Dental dams are available at many pharmacies, sexual health clinics, and online retailers like HotCherry. They are often stocked near condoms, so that is a good place to look in a physical store. If you are having trouble finding them locally, ordering online is a simple and discreet option.
How do I use a dental dam for the first time?
Open the packaging carefully and unfold the dam fully before you begin. Place it flat over the vulva or anus so the entire area you plan to stimulate is covered. Hold it gently in place throughout and add a little water based or silicone based lube to the receiving partner's side if you want extra comfort.
Can I use a dental dam with lube?
Yes, and it is actually a good idea. A small amount of water based or silicone based lube on the side that touches the skin can make things more comfortable and pleasurable for the receiving partner. Just make sure you avoid oil based lubes if you are using a latex dam, as oil can weaken the material.
What if neither of us has a dental dam handy?
A regular condom can be cut open and unrolled into a flat sheet to act as a barrier in a pinch. Snip off the tip, then cut off the base, and finally cut down one side so it opens out flat. It is not quite as wide as a purpose made dam, but it provides a similar barrier.
Do dental dams affect sensation much?
Modern dental dams are made from very thin material, so sensation is usually still very present for both partners. Adding lube to the skin side can help transmit warmth and movement more naturally. If you feel a bit nervous about trying one, starting slowly and communicating with your partner makes the whole experience more relaxed.
Should I see a doctor about STI prevention?
A dental dam is one helpful tool among several for reducing risk, but it is not a substitute for regular STI testing or a conversation with a healthcare professional. If you have questions about your personal sexual health, your doctor or a sexual health clinic is the right place to go. They can give you guidance tailored to your specific situation.
This entry is for education only. It is not medical advice, and HotCherry is a retailer, not a medical provider. If you have questions about your own health, please talk with a doctor or another qualified specialist.
Share